Season 16

Republican Presidential Candidate Mike Huckabee; Chef Emeril Lagasse; Chingy performs; JibJab Cartoon and Tonight Show Free For All.

Pamela Anderson; Mary J. Blige performs from the CD "Growing Pains."

Jules Sylvester and reptiles; Maria Bartiromo; Finger Eleven performs from the CD "Them VS. You VS. Me."

From "jimmy kimme live!," Jimmy Kimme; Stand-up comedian, Elon Gold; the music of OneRepublic ("Dreaming Out Loud"); A Priest, A Rabbi, and a Minister Tell Jokes.

Brad Garrett from "Til Death" and John Melendez from "One, Two, Many". The music of Ingrid Michaelson performing from the CD "Girls and Boys"

Amazing animals with Dave salmoni! From "medium" Patricia Arquette! The music of Punch Brothers! " Jaywalking."

Anne Hathaway "Get Smart" - Comedian Gabriel Iglesias; Amos Lee: Performance from the CD "Last Days at the Lodge"; Headlines.

Ryan Phillippe from "Stop-Loss", Lisa Lampanelli from "Drillbit Taylor" and music of Jim Lauderdale from the CD "Honey Songs".

Conan O'Brien; Anderson Cooper; Allison Moorer: Performance from the CD "Mockingbird"; and Mo Rocca on spring break in Florida.

John Larroquette "Boston Legal"; Kid Inventors; K.D. Lang: Performance from the CD "Watershed"; "The 99 Cent Shopping Spree."

Jodie Foster, Cedric the Entertainer, the music of Lili Hayden and "headlines."

Soccer great, David Beckham, from "the view," Sherri Shepherd, the music of the B-52s. And "famous ad slogans and their first drafts."

Steve Carell; from the "Today" Show, Kathie Lee Gifford. The music of Ani LiFranco. And "Photo Booth."

Senator Hillary Clinton, comedian Patto Oswalt; the Music of Ferras, and "jaywalking."

David Spade "Rules of Engagement"; 102-year-old Nora Hardwick, Britain's oldest driver; Ben Lee performs from the CD " Ripe."

Thomas Haden Church from "Smart People", Sig & Edgar Hansen from "The Deadliest Catch". The music of Jimmy Eat World from the CD "Chase This Light".

Dennis Quaid from "Smart People", Russell Brand from "Forgetting Sarah Marshall". The music of Brett Dennen performing "Ain't No Reason" from the CD "More So Much More".

Ellen Page from "Smart People", Donny & Marie Osmond from the "Miss USA Pageant". The music of Angie Stone performing from the CD "The Art of Love and War".

Keanu Reeves from the movie "Street Kings", Chelsea Handler, the music of The Redwalls performing from the CD "The Redwalls".

William Shatner from "Boston Legal", Tricia Helfer from "Battlestar Galactica". The music of Ryan Bingham performing from the CD "Mescalito".

Mark Harmon from "NCIS" and 18-year-old reptile expert Corbin Maxey. The music of Ray J performing from the CD "All I Feel".

Brad Garrett from "Til Death" and John Melendez from "One, Two, Many". The music of Ingrid Michaelson performing from the CD "Girls and Boys"

Charles Barkley and 3 Senior Rock Stars from "Young @ Heart Chorus". The music of Young @ Heart Chorus.

Hugh Laurie "House"; Doug Fine "Environmental Author"; Prince: Performance from the CD "Planet Earth"; Jaywalking.

Jenna Fischer "The Office"; Comedian Robert Schimmel; Trace Adkins: Performing "You're Gonna Miss This" from the CD "American Man".

Harrison Ford "Indiana Jones"; William Moseley "The Chronicles of Narnia Prince Caspian"; Carly Simon: Performing "Hold Out Your Heart" from the CD "This Kind of Love"; The Audience Wants to Know.

Matthew Fox "Speed Racer"; Kathleen Edwards: Performance from the CD "Asking for Flowers"

Simon Cowell "American Idol"; Rob Schneider "You Don't Mess with the Zohan"; Josh Groban: Performance from the "Awake Live CD/DVD"; Headlines

Sylvester Stallone "Rambo"; Couple married 75 yrs. Irma & Ray Ziff; Jason Mraz: Performance from the CD "We Sing, We Dance, We Steal Things"; Does this Impress Ed Asner?

Adam Sandler "You Don't Mess with the Zohan"; Hillary Duff "War, Inc."; Al Green: Performance from the CD "Lay It Down"; Summer Movie Knockoffs.

Laura & Jenna Bush; American Idol winner David Cook; Tristan Prettyman: Performance from the CD "Hello"; Brian Herzlinger Talks to Third Graders who Want to become a President.

Terry Bradshaw; Turkey baster virtuoso Ray Sanders; Colbie Caillat: Performance from the CD "Little Things;" Amaon.com's Worst Sellers.